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1 Institute for Materials Research, National Bureau of Standards, Washington, DC 20234, USA
The mineral whitlockite has been described as having Ca/P ratios of 3:2 and 10:7. This study used the pyrolytic formation of pyrophosphate and whitlockite from calcium orthophosphates and their mixtures with CaCO3 to determine this Ca/P ratio. Its mean value of 1.506 ± 0.015 indicated a formula of Ca3(P04)2.
Submitted on September 19, 1969
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